Type 2 Diabetes Mellitus (DM) is a chronic disease requiring continuous management, including appropriate dietary regulation. Limited knowledge of diabetic diets may affect patients’ adherence to dietary recommendations and blood glucose control. This community service program aimed to improve dietary knowledge among patients with type 2 DM and support blood glucose control at Somagede Primary Health Center. The program involved 15 patients with type 2 DM and provided education through lectures and question-and-answer sessions supported by PowerPoint presentations, leaflets, animated videos, and follow-up assistance through a WhatsApp group. Evaluation was conducted using pretests and posttests as well as blood glucose measurements before and after the educational intervention. Before education, 2 participants (13.3%) had good knowledge, 7 (46.7%) had moderate knowledge, and 6 (40.0%) had poor knowledge. After education, the proportion with good knowledge increased to 12 participants (80.0%), while 3 (20.0%) had moderate knowledge and none had poor knowledge. Blood glucose measurements also showed an increase in participants with levels <140 mg/dL, from 8 participants (53.3%) before education to 13 participants (86.7%) after education. Multimodal dietary education was followed by improved participant knowledge and a descriptive improvement in blood glucose profiles. Regular and continuous dietary education should be maintained as part of type 2 DM management in primary health care settings.